On newer MediaTek SoCs (e.g. MT7986), WLAN->WLAN or WLAN->Ethernet flows can
be offloaded by the SoC. In order to support that, the .ndo_setup_tc op is
needed.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
v2: fix copy&paste error in trace function
include/net/mac80211.h | 9 +++++++++
net/mac80211/driver-ops.h | 17 +++++++++++++++++
net/mac80211/ieee80211_i.h | 3 ++-
net/mac80211/iface.c | 17 +++++++++++++++++
net/mac80211/trace.h | 25 +++++++++++++++++++++++++
5 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index f12edca660ba..fcfe3e9aff3d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4227,6 +4227,10 @@ struct ieee80211_prep_tx_info {
* @set_hw_timestamp: Enable/disable HW timestamping of TM/FTM frames. This is
* not restored at HW reset by mac80211 so drivers need to take care of
* that.
+ * @net_setup_tc: Called from .ndo_setup_tc in order to prepare hardware
+ * flow offloading for flows originating from the vif.
+ * Note that the driver must not assume that the vif driver_data is valid
+ * at this point, since the callback can be called during netdev teardown.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -4593,6 +4597,11 @@ struct ieee80211_ops {
int (*set_hw_timestamp)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_set_hw_timestamp *hwts);
+ int (*net_setup_tc)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct net_device *dev,
+ enum tc_setup_type type,
+ void *type_data);
};
/**
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index a68d606e6987..0bf208f5bbc5 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1502,6 +1502,23 @@ static inline int drv_net_fill_forward_path(struct ieee80211_local *local,
return ret;
}
+static inline int drv_net_setup_tc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct net_device *dev,
+ enum tc_setup_type type, void *type_data)
+{
+ int ret = -EOPNOTSUPP;
+
+ sdata = get_bss_sdata(sdata);
+ trace_drv_net_setup_tc(local, sdata, type);
+ if (local->ops->net_setup_tc)
+ ret = local->ops->net_setup_tc(&local->hw, &sdata->vif, dev,
+ type, type_data);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
int drv_change_vif_links(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
u16 old_links, u16 new_links,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3d4edc25a69e..b2535614483e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1939,7 +1939,8 @@ void ieee80211_color_collision_detection_work(struct work_struct *work);
/* interface handling */
#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
NETIF_F_HW_CSUM | NETIF_F_SG | \
- NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
+ NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
+ NETIF_F_HW_TC)
#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
MAC80211_SUPPORTED_FEATURES_RX)
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 23ed13f15067..19d81cc03375 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -813,6 +813,21 @@ ieee80211_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
dev_fetch_sw_netstats(stats, dev->tstats);
}
+static int ieee80211_netdev_setup_tc(struct net_device *dev,
+ enum tc_setup_type type, void *type_data)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_local *local;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ local = sdata->local;
+
+ if (!local->ops->net_setup_tc)
+ return -EOPNOTSUPP;
+
+ return drv_net_setup_tc(local, sdata, dev, type, type_data);
+}
+
static const struct net_device_ops ieee80211_dataif_ops = {
.ndo_open = ieee80211_open,
.ndo_stop = ieee80211_stop,
@@ -821,6 +836,7 @@ static const struct net_device_ops ieee80211_dataif_ops = {
.ndo_set_rx_mode = ieee80211_set_multicast_list,
.ndo_set_mac_address = ieee80211_change_mac,
.ndo_get_stats64 = ieee80211_get_stats64,
+ .ndo_setup_tc = ieee80211_netdev_setup_tc,
};
static u16 ieee80211_monitor_select_queue(struct net_device *dev,
@@ -929,6 +945,7 @@ static const struct net_device_ops ieee80211_dataif_8023_ops = {
.ndo_set_mac_address = ieee80211_change_mac,
.ndo_get_stats64 = ieee80211_get_stats64,
.ndo_fill_forward_path = ieee80211_netdev_fill_forward_path,
+ .ndo_setup_tc = ieee80211_netdev_setup_tc,
};
static bool ieee80211_iftype_supports_hdr_offload(enum nl80211_iftype iftype)
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 9f4377566c42..e0ccf5fe708a 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2478,6 +2478,31 @@ DEFINE_EVENT(sta_event, drv_net_fill_forward_path,
TP_ARGS(local, sdata, sta)
);
+TRACE_EVENT(drv_net_setup_tc,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ u8 type),
+
+ TP_ARGS(local, sdata, type),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __field(u8, type)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ __entry->type = type;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " type:%d\n",
+ LOCAL_PR_ARG, VIF_PR_ARG, __entry->type
+ )
+);
+
TRACE_EVENT(drv_change_vif_links,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
--
2.39.0
